JP2006306338A - Latching device for scaffolding board in loading platform of truck - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To concurrently obtain high strength and good appearance in a latching device for a footboard at a loading platform rear portion of a truck. <P>SOLUTION: Between right and left support columns 11, 11 as structural material upright at the rear end of the loading platform 10 of the truck, an upward opening latching groove 21 for latching a hook 31 of the footboard 30 is formed by jointing L-shaped members 22, 23 or the like to a frame member 18 of the rear end of a floor surface 17 of the loading platform 10. The footboard 30 is capable of being covered by closing a gate board 12 at the loading platform 10 rear portion upward or by closing an opening and closing door 41 at the rear portion of the loading platform. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stepping plate latching device in a cargo carrier loading platform for installing a loading plate for loading and unloading cargo slanted from the ground surface to a cargo carrier loading platform such as a truck.

  There is a case where a latching device for hanging a step board is provided at the rear part of the loading platform of the lorry.

  The conventional hooking device is configured by arranging rearward hooks 2, 2... In a row at the rear end of the loading platform 1, and fixing the angle member 3 inside the hooks 2, 2. One end of a step board (not shown) can be hung on the angle member 3. The hinges 4a, 4a ... for the rear plate 4 of the loading platform can be mounted together with the long connecting members 4b, 4b ... connected to the turn plate 4 using a part of the hooks 2, 2 ... . In addition, pockets 5 and 5 with lids for storing the walk boards may be provided at the rear part of the loading platform 1.

On the other hand, in the case of a small vehicle such as a light vehicle, it has also been proposed to provide a latching material for hanging a step board on the rear edge plate itself (Patent Document 1).
Microfilm of Japanese Utility Model Sho 62-50888 (Japanese Utility Model Sho 63-158480)

  According to the former of the prior art, it is possible to easily realize a sturdy latching device that can sufficiently cope with the loading and unloading of heavy objects such as heavy equipment for construction, while traveling with the cover plate 4 closed upward. Since the rugged hooks 2, 2,... And the angle member 3 are exposed to the rear of the loading platform 1, the appearance is not good, and the angle member 3 is moved in the longitudinal direction by the hinges 4a, 4a,. Since it is divided, there is a problem that the latching position of the step board is restricted, or the hinges 4a, 4a... Including the connecting members 4b, 4b. In the latter prior art, the hooking material is provided on the rear cover plate, so there is no problem in appearance, but the full weight of the load is loaded on the hinge of the cover plate. Not suitable for unloading.

  Therefore, in view of the problems of the prior art, an object of the present invention is to provide a very good appearance appearance by providing a linear latching groove at the rear end of the loading platform, and also for loading and unloading heavy objects. It is an object of the present invention to provide a step board latching device in a carrier bed of a lorry that can be easily handled.

  In order to achieve such an object, the structure of the present invention is such that a latching groove for opening a step board is formed at the rear end of the cargo carrier, and the latching groove is straight on the left and right at the rear end of the carrier. The gist is that it can be concealed by closing the cover plate or the door at the rear of the loading platform.

  The latching groove can be formed by attaching an L-shaped material with the upper end of the vertical side equal to or lower than the floor surface of the loading platform with respect to the rearward vertical surface of the rear end of the loading platform frame. Two shape members can be combined with the horizontal sides separated from each other up and down.

  Moreover, you may attach the hinge for the rear edge plate to the L-shaped material.

  According to the configuration of the present invention, the retaining groove for the step board formed at the rear end of the loading platform forms a part of the loading platform continuously in the left and right at the rear end of the loading platform, and the upper plate of the rear portion of the loading platform is positioned upward. It is possible to conceal it by closing the door or closing the door at the rear of the loading platform, so that the appearance appearance during traveling can be made extremely good and it is possible to cope with unloading of heavy objects. In addition, the latching groove should just be continued substantially on either side, and there may be a cut | interruption etc. for draining in the middle. In addition, for example, in a three-side-opening loading platform having a cover plate on the rear portion and both left and right side portions, the retaining groove is provided on the left and right sides when a support material for connecting the rear cover plate and the side cover plate is provided on the left and right sides. In a box-shaped cargo bed in which the roof is provided on both sides of the loading platform via both side plates, it is provided between the rear ends of both side plates or the left and right column materials that support the rear ends of both side plates. Shall. That is, the retaining groove may be provided between the left and right structural members at the rear end of the loading platform. The rear opening / closing door refers to a single-opening or double-opening door that opens and closes the rear surface of the box-shaped loading platform.

  The latching groove can be formed in an open top that is continuous to the left and right by attaching an L-shaped member having an L-shaped cross section, that is, an angle member or a bent member, to the vertical surface of the rear end of the cargo bed frame. However, the latching groove can be formed by a U-shaped or U-shaped groove profile instead of the L profile. In addition, the L-shaped material has an upper end of the vertical side that is equal to or lower than the floor surface of the loading platform, so that there is no possibility of being caught accidentally when loading and unloading luggage.

  By combining the two L-shaped members, the strength can be increased to withstand heavy objects. The two L-shaped members are separated from each other in the same direction by separating the horizontal sides up and down, and the bending moment applied to the upper and lower horizontal sides is taken as the tensile force of the upper horizontal side and the compression force of the lower horizontal side. It is because it can be made to act. The vertical sides of the two L-shaped members are preferably joined with their upper ends aligned, but may not necessarily be joined.

  If the hinge for the rear plate is attached to the L-shaped material, by closing the turn plate upward, the lower end of the turn plate can be positioned immediately above the hook groove, and the hook groove can be concealed in a good manner. . Further, when the hook plate is opened downward, the hook groove is not divided by the hinge of the hook plate, and there is no restriction on the hook position of the step board. In addition, the hinge need not have a special shape.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The step board latching device in the cargo carrier platform is formed by forming an upper opening latch groove 21 for the step plate at the rear end of the cargo carrier platform 10 (FIGS. 1 and 2).

  The loading platform 10 is formed in a three-way opening having a rear plate 12 and side plates 13, 13 via left and right support members 11, 11 erected on the rear end (FIG. 3). Each of the cover plates 12 and 13 can be opened and closed up and down via hinges 12a, 12a,..., 13a, 13a, respectively, and with respect to the column member 11 through known locking fittings 12b, 12b, 13b, and 13b. They can be locked and connected individually. In addition, the protective material 15 for the safety at the time of rear-end collision is attached to the rear end of the loading platform frame 14 which supports the loading platform 10 via the sturdy up-down support material 15a. At the rear end of the loading platform 10, a pocket 16 with a lid for accommodating a not-shown walking board in the loading frame 14 is formed, and a shielding plate 16 a for concealing the support material 15 a is attached around the pocket 16. ing.

  The floor surface 17 of the cargo bed 10 is attached to the upper surface of the loading frame 14 (FIGS. 1 and 2), and the rear end of the floor surface 17 is protected via an edge material 17a. In addition, a frame material 18 having an inverted L-shaped cross section is attached to the rear end of the cargo bed frame 14, and the support materials 11 and 11 are erected at both ends of the frame material 18. That is, the support members 11, 11 are left and right structural members that are erected at the rear end of the loading platform 10.

  The latching groove 21 is formed by attaching two L-shaped members 22 and 23 having an L-shaped cross section to a rearward vertical surface of the frame member 18. Therefore, the retaining groove 21 is continuously formed in a straight line between the left and right support members 11, 11. The L-shaped members 22 and 23 are joined by aligning the upper ends of the respective vertical sides at a position lower than the floor surface 17, and separating the tips of the respective horizontal sides up and down and combining them inward and outward in the same direction. It is joined to the vertical surface. That is, the outer L-shaped member 23 is formed so that the vertical side is sufficiently long and the horizontal side is longer than the inner L-shaped member 22 by the thickness of the L-shaped member 23. Further, the fixed side of the hinges 12a, 12a... Of the rear plate 12 is attached to the outer surface of the vertical side of the outer L-shaped member 23. The upper ends of the vertical sides of the L-shaped members 22 and 23 do not have to be higher than the floor surface 17 and do not have to be joined to each other.

  The rear plate 12 can be opened downward (two-dot chain line in FIG. 2) and closed upward (solid line in FIG. 2) via hinges 12a, 12a. When the turn plate 12 is closed upward, the lower end of the turn plate 12 is positioned immediately above the hook groove 21 by the L-shaped members 22 and 23. Therefore, the hook groove 21 is not bent during traveling. 12 and is not exposed to the outside (FIG. 3). However, a guard member 12c whose outer surface side hangs narrowly toward the hinges 12a, 12a,... Is attached to the lower end of the cover plate 12 (FIGS. 1 and 2), and the vertical sides of the L-shaped members 22, 23. It is possible to cover a gap that is formed between the upper end of each of the two. In FIG. 3, the left and right steps 19 and 19 are disposed below the L-shaped member 23 via auxiliary brackets 11 c and 11 c located below the support members 11 and 11. Between the L-shaped member 23, a direction indicator lamp, a tail lamp, and the like are housed in a good manner.

  When the twisting plate 12 is opened downward, the upper open latching groove 21 is exposed (FIGS. 1 and 4). Therefore, the hook 31 at the upper end of the step board 30 can be hung on the retaining groove 21. However, the lower end of the step board 30 is grounded to a ground surface (not shown). Therefore, even a heavy object such as a heavy machine is connected via a slope from the ground surface formed by the step board 30 to the floor surface 17 of the loading platform 10. It is possible to load and unload smoothly. The step board 30 is made to correspond to left and right wheels or an endless track such as heavy machinery by using a pair of left and right, for example, and by hanging each hook 31 at an arbitrary position of the retaining groove 21, the heavy machinery It can be made to correspond to the vehicle width.

Other embodiments

  The retaining groove 21 can be formed by one L-shaped member 23 and a reinforcing member 24 (FIG. 5).

  The reinforcing member 24 reinforces the L-shaped member 23 by connecting the L-shaped member 23 and the frame member 18. Therefore, the reinforcing member 24 may be a strip plate material that continues over the entire length of the retaining groove 21, or may be a number of short strip plates that intermittently connect the L-shaped member 23 and the frame member 18. Furthermore, a large number of round bars or prisms may be used. In FIG. 5, the upper end of the vertical side of the L-shaped member 23 is illustrated at the same height as the floor surface 17, and the support member 11 and the straddle plates 12 and 13 are not illustrated. That is, the loading platform 10 may be of a type that directly connects the rear plate 12 and the side plates 13 and 13 without providing the left and right support members 11 and 11, 13 may be a fixed side plate, and may further be a form in which all of the raging plates 12, 13, and 13 are omitted.

  The latching groove 21 may be configured to be concealed by double door opening / closing doors 41 and 41 that open and close the rear surface of the box-shaped loading platform 10 (FIG. 6). However, FIG. 6B is an enlarged cross-sectional view taken along line XX in FIG.

  The left and right support members 11, 11 at the rear end of the loading platform 10 are structural materials that support the box 40 including the both side plates, the roof, and the doors 41, 41 on the loading frame 14. However, the support members 11 and 11 may be incorporated in the both side plates of the box 40. In this case, the both side plates themselves correspond to the structural material. The open / close doors 41 and 41 can be opened and closed to the left and right behind the L-shaped members 22 and 23 forming the retaining grooves 21 via hinges (not shown) (in the direction of the arrow in FIG. 6A). Therefore, when the open / close doors 41 and 41 are closed with the outer L-shaped member 23 used as a door, the latching groove 21 can be concealed from the outside invisible ((B) in the figure). When the doors 41 and 41 are opened, the hooks 31 and 31 of the step boards 30 and 30 can be hung on the retaining groove 21 to load and unload the luggage (FIG. 1A).

  In the above description, as long as the upper open retaining groove 21 can be linearly formed on the left and right at the rear end of the loading platform 10, the channel member having a U-shaped or U-shaped cross section is used in addition to the L-shaped materials 22 and 23. It can form with the latching member of arbitrary shapes including these. Further, these hooking members may be directly attached to the rear end of the loading frame 14 without using the frame member 18. In FIG. 6, the latching groove 21 may be formed by a single L-shaped member 23 in accordance with FIG. 5, and the open / close doors 41 and 41 may be formed as one single-open shape. It may be a single door that opens at a distance.

Main part enlarged perspective view Cross section of the main part Usage perspective view Fig. 2 equivalent diagram showing the state of use Configuration explanatory diagram showing another embodiment Sectional drawing which shows the principal part which shows other embodiment FIG. 3 equivalent view showing a conventional example

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Loading platform 12 ... Cover plate 12a ... Hinge 14 ... Loading platform frame 17 ... Floor surface 21 ... Hanging groove 22, 23 ... L-shaped material 30 ... Step board 41 ... Opening and closing door

Patent Applicant Mikawa Body Co., Ltd.
Attorney Tadaaki Matsuda, Attorney

Claims (4)

  At the rear end of the lorry, an upwardly-opening latching groove for the step board is formed, and the latching groove is linearly continuous from side to side at the rear end of the platform, A stepping plate latching device in a cargo carrier bed, which can be concealed by closing an opening and closing door.   The hooking groove is formed by attaching an L-shaped material with an upper end of a vertical side equal to or lower than a floor surface of the loading platform with respect to a rearward vertical surface of the rear end of the loading platform frame. Item 1. A step board latching device in a cargo carrier bed according to item 1.   The stepping plate latching device in a loading platform of a lorry according to claim 2, wherein the L-shaped member is a combination of two L-shaped members with their horizontal sides separated vertically. 4. A hooking device for a step board in a cargo carrier bed according to claim 2, wherein a hinge for a rear edge plate is attached to the L-shaped member.

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